San Juan Weather in December

Warm and pleasant, with regular rainfall. Average highs of 28°C and lows of 23°C, with around 15 rainy days expected throughout the month.

While December isn't our top-rated month for San Juan, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.

Average high

28°C

Average low

23°C

Rainy days

15 days

Best months to visit

Year-round

What to do in San Juan in December

Whatever the weather, San Juan rewards curious visitors. Here are some of the best ways to spend your time:

Old San Juan walking tours and colonial fort exploration El Yunque waterfall hiking and rainforest bathing Bioluminescent bay kayaking at night (Vieques) Rum distillery tours and tasting at local distilleries Beach days at Flamenco Beach (Culebra) via ferry Salsa dancing lessons and nightclub experiences

What to pack for December

Light layers work well — T-shirts and shorts for the day, a light jacket for evenings. Comfortable walking shoes are a must. Bring a compact umbrella just in case.